I'm having a problem with my app., in which I use canvases. let's say that
i have a number drawn in one of the canvases thru GC graphics, and I need
to draw a new number in that specific canvas, but when i do so, i can
still see the former number drawn underneath the new one. Is it possible
to simply erase the content of a canvas....so it cannot be seen anymore
and I can draw new stuff on it???
(i checked out the API documentation a few times, but havent found any
methods how to do so....)